According to the text, what is the true nature of birth and death, particularly for a being like Sai Baba?

The text defines birth as the union of the body and senses, and death as their separation. However, for an enlightened being like Sai Baba, these are considered false imaginations. Chapter 43 explains that Sai is the complete Supreme Brahman, for whom birth and death are meaningless. Since he is devoid of bodily impulses and is a 'mass of bliss,' the concept of death for his body is questioned. Death is described as a characteristic of the soul's nature, but for those who incarnate by their own will for the welfare of devotees, they are not touched by it. Death is seen as mere dust before such a being.